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white raw mineral Quartz, Calcite and Carbonate
Pegmatite rock close up with many crystals.
Ryongmun limestone cave in Myoyhang Mountains, North-Korea.
Barite on fluoride
Cluster of siderite balls with calcite, from Nikolaevskiy Mine, Dalnegorsk, Russia. Collection mineral isolated on white background
Triangle calcite crystal cluster from Turkey.\nCalcite is a mineral name and the chemical structure of this mineral, called carbonate rocks, is CaCO3. It is found in crystal form in various shapes (crystallizes as rhomboid, scalenoeder) and has a glassy, ​​colorless and transparent structure. It is easily ground and a white powder is obtained. Its hardness is 3 on Moh's scale and its density is 2.6-2.7.
calcite mineral on black, isolated
Sphalerite, aka Zinc Sulfide, is a n important ore of zinc. It is often found with dolomite - the white formation around it and other minerals. The specimen was collected in Beamsville, Ontario
calcite on quartz amethyst rock specimen
The mineral bastnäsite or bastnaesite is one of a family of three carbonate-fluoride minerals, which includes bastnäsite-(Ce). Bastnäsite is one of the largest sources of cerium and other rare earth elements. Bastnäsite has cerium, lanthanum and yttrium in its generalized formula but officially the mineral is divided into three minerals based on the predominant rare earth element. Mountain Pass, San Bernardino County, California.
calcite from Montalto di Castro, Italy nestled in basalt matrix isolated on white background
Layered maroon and light speckled  rock magnified.
Druse of quartz crystals, calcite and siderite spherulites from Nikolaevskiy Mine, Dalnegorsk, Russia. Collection mineral isolated on white background
Shows large rock with opal as they came from a mine in the USA.
mine stones from Maramures county, Romania
Crystal raw ore
Macro Calcite mineral stone on sphalerite black background close up
Emerald crystal background.
topaz in matrix from Thomas Range, Utah isolated on white background
Magnified close up of mineral encrusted basalt rock.
calcite mineral texture as very nice natural background
Agate is a microcrystalline variety of quartz, chiefly chalcedony, cryptocrystalline form of silica.  Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks. Most agates occur as nodules in volcanic rocks or ancient lavas where they represent cavities originally produced by the disengagement of volatiles in the molten mass which were then filled, wholly  by siliceous matter deposited in regular layers upon the walls. Cathedral Valley, Capitol Reef National Park, Utah.
muscovite (mica) sheet. macro detail texture background. close-up raw rough unpolished semi-precious gemstone
rock surface
smithsonite, a form of zinc spar is a mineral form of zinc with barite and celestine
Orthoclase, or orthoclase feldspar (KAlSi3O8), is an important tectosilicate mineral which forms igneous rock. The close-up image shows several Orthoclase crystals.
Mineral specimens
Magnified close up of porphyritic granite with fledspar.
kalcite mineral texture as very nice background
Hericium erinaceus (also called lion's mane mushroom, mountain-priest mushroom, bearded tooth fungus, and bearded hedgehog)
Free Images: "bestof:Tn prosopite with calcite xls.jpg en Lavender tan prosopite with calcite xls Collected from where the main alumino-fluoride pipe crosses the 32' level NE 3x7cm"
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